【摘要】 以新疆克孜尔坝址为研究对象,综合确定性和概率地震危险性分析方法的优点,依据最大贡献和构造一致原则,提出了基于有效峰值加速度(EPA)的设定地震方法,给出了新疆克孜尔坝址100a超越概率为2%的设定地震参数———震级、震中距和反应谱.该设定地震反应谱介于一致概率反应谱和规范标准反应谱之间,克服了一致概率反应谱和规范标准反应谱的不足,证实了设定地震方法的合理性.更多还原

【Abstract】 A case study was performed on the Kezier Dam site. Based on the principles of maximum contribution and structure consistency, an effective peak acceleration (EPA)-based scenario earthquake method was put forward by combination of the virtues of the probability and determinacy seismic hazard analysis methods. The scenario earthquake parameters of the Kezier Dam site, including the magnitude, epicentral distance and response spectrum, for a transcendental probability of 2% for 100 years were given. The response spectrum of scenario earthquake obtained was compared with the response spectrum prescribed by seismic design codes and the probability-consistent response spectrum, and the rationality of the scenario earthquake method was verified.更多还原